Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131986 | Golf club head and its manufacturing | Mutsumi Harada, Kenzaburou Iijima | 1992-07-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131986 | Golf club head and its manufacturing | Mutsumi Harada, Kenzaburou Iijima | 1992-07-21 |